Apocalypse occured when the moon suddenly crashed and fused with Earth. The planet's mass drastically increased and the system was messed. Population was wiped. New species appeared.

It has been a few years after the apocalypse. Let alone a group, not a single human besides herself she had came across. For the new monsterous species were all she has gotten acquainted. The lack of social interaction is a problem for an extrovert. But she has to live with it. Live with her creations. The reasons she survived.

Be it war weapons or any time of machineries. With enough time and resources, Aika Inoue can make it happen.

Aika was on her daily scavenge for any useful mechanical parts in a ghost town she comes across. She was mounting her mech she named Karthon. Specially designed similar to her favorite gundum. A sound afar caught her attention. Roars and crashes.

"Mutants fighting?"

Not like she's afraid of those beasts. She had dealt with them numerous times. In her trustworthy gundum suit that provides her security, power, and protection from the new environment.

"Loots here I come!"

Many parts in the mutants' dead bodies can be salvaged and upgrade her weapons.